Definition of invalidate in English:

invalidate

verb

[WITH OBJECT]
  • 1Make (an argument, statement, or theory) unsound or erroneous.

    • ‘His second is that finding unpleasant - even horrible - application of a scientific theory or philosophical argument invalidates the theory.’
    • ‘How funny that you would try to turn my statement into a racist tome in order to invalidate my point.’
    • ‘This does not invalidate the moral argument against hunting but does begin to explain why a minority can make so much noise and commotion while the rest of us are obliged to tolerate their antics.’
    • ‘So far, so good, but there is one thing that could invalidate that prediction.’
    • ‘However, none of this invalidates the general theory that stock aligns CEO incentives with those of the shareholders better than does cash salary; it does.’
    • ‘The idea that women could do these things to women seems at first blush to potentially invalidate these theories.’
    • ‘This type of movement invalidates the hypothesis that the main mechanism responsible for tumor growth is nutrient competition between cells.’
    • ‘If Rorty's view about the contingency of all beliefs is right, then at least one belief-his own-is not contingent and so invalidates his general theory: as a result, we stumble round a circle.’
    • ‘On the other hand, migration to an open software context implies no more costs than migration between two different proprietary software contexts, which invalidates your argument completely.’
    • ‘This would not necessarily invalidate my contention that converts were desirable because they brought with them greater access to the land.’
    • ‘Again, a comparison with the highly social bumblebee invalidates this argument.’
    • ‘He also said that all the pertinent questions had been asked and answered and that the inconsistencies did not invalidate the officers' statements.’
    • ‘That ‘debt deflation dynamics’ have not manifested themselves thus far in the US does not invalidate the theory.’
    • ‘While these are both interesting finds, there is nothing to invalidate the arguments already presented against evolution.’
    • ‘Doesn't this tar him with the same brush as myself and therefore invalidate his argument?’
    • ‘It should also be noted that the presence of proteins in cell membranes in no way invalidates these arguments, which are quite general.’
    • ‘This need not invalidate the argument for a continuing bridge between cultures.’
    • ‘But Stone's argument cannot be invalidated by counter-examples in which no entity or system is prevented, if deprived of care, from developing into a person.’
    • ‘The reporter did ask, ‘Well, doesn't that invalidate just war theory as a whole?’’
    • ‘Problems of a moral theory in such an extreme situation do not invalidate a theory for normal situations.’
    disprove, prove to be false, show to be false, refute, explode, contradict, rebut, negate, gainsay, belie, give the lie to, discredit, expose, debunk, knock the bottom out of, drive a coach and horses through
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  • 2Deprive (an official document or procedure) of legal efficacy because of contravention of a regulation or law.

    ‘a technical flaw in her papers invalidated her nomination’
    • ‘Finding such so-called prior art is the only way to invalidate a patent.’
    • ‘Federal Courts have the power to review and invalidate legislative acts which are contrary to the Constitution.’
    • ‘Therefore there was no renewal of a passport, because the passport was invalidated.’
    • ‘Failure to do this will invalidate the contract.’
    • ‘However, having your will reviewed by a good attorney guards against loopholes in the document that could invalidate the will in your state.’
    • ‘The above-cited passage also shows that an assignment contrary to a contractual prohibition invalidates the assignment rather than constituting a breach of contract, unless the contract provides otherwise.’
    • ‘However, while trial courts have invalidated the statute, the intermediate appellate courts that issued both Hertz and an earlier decision have both found the statute constitutional.’
    • ‘These cases stress that errors, even fraudulent errors, do not automatically invalidate the warrant.’
    • ‘following a ruling by the Transvaal Division of the High Court last year invalidating a 1998 national regulation that limited back pay to three months.’
    • ‘While the lien should not be invalidated, the Plaintiff should not be entitled to rely upon the statement of claim which claims an amount greater than the lien claims.’
    • ‘On one occasion, a representative for a Democratic county clerk threatened to ‘unenrol’ our members from the voter rolls, which would have invalidated the petitions they circulated.’
    • ‘And the judiciary is given the power to strike down legislation, invalidate legislation that it considers is inconsistent with those rights.’
    • ‘Undue influence is another ground which may be applied to invalidate a will.’
    • ‘Even more striking is Novkov's treatment of the United States Supreme Court's opinion in Adkins v. Children's Hospital invalidating a minimum wage law for women.’
    • ‘In a four-hour opening address to a packed courtroom, the barrister went on to argue that invalidating the search warrants would set a precedent that would dangerously restrict their future operations.’
    • ‘A civil partnership invalidates any existing wills.’
    • ‘The Supreme Court unanimously invalidated the law.’
    • ‘The court held that the statute did not invalidate the tenancy agreement but merely regulated its circumvention through the imposition of fines.’
    • ‘The principle of legality doesn't clash with the power of judicial review when the courts must invalidate criminal laws.’
    • ‘It is possible that the Parliament could pass a law, having extraterritorial effect, which might invalidate a contrary law.’
    render invalid, void, nullify, annul, negate, cancel, quash, veto, overturn, overrule, override, undo, reverse
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Origin

Mid 17th century: from medieval Latin invalidat- annulled from the verb invalidare (based on Latin validus strong).

Pronunciation:

invalidate

/inˈvaləˌdāt/